Allow ignoring markdown rendering in st.markdown, st.info, st.warning,...

[kilpert]

Checklist

• I have searched the existing issues for similar issues.
• I added a very descriptive title to this issue.
• I have provided sufficient information below to help reproduce this issue.

Summary

The output in st.write, st.warning, and st.error is altered (crippled). In my code example, some "_" are deleted from an error message.

Reproducible Code Example

import streamlit as st


"# Unicode str"

error_message = "'bla' does not match '^[0-9]{8}_[A-Z]+[0-9]+_[0-9]+_[A-Z0-9]+$'"

st.code(type(error_message))

"## OK"
st.code(error_message)

"## Bug: some '_' are missing!!!"
st.write(error_message)
st.warning(error_message)
st.error(error_message)



"# Byte str"

error_message = b"'bla' does not match '^[0-9]{8}_[A-Z]+[0-9]+_[0-9]+_[A-Z0-9]+$'"

st.code(type(error_message))

"## OK"
st.code(error_message)
st.write(error_message)

"## Bug: some '_' are missing!!!"
st.warning(error_message)
st.error(error_message)

Steps To Reproduce

1. Output a complex string with st.write, st.warning, or st.error.
2. Carefully obsere the output => Some characters can be missing.

Expected Behavior

The output text should be the same as in the variable. No characters should be missing.

Current Behavior

In my example, some "_" are gone, which is bad, e.g. when you want to output the exact regex error message.

Is this a regression?

• Yes, this used to work in a previous version.

Debug info

• Streamlit version: 1.33.0
• Python version: 3.12.2
• Operating System: LMDE 6 (faye), Linux 6.1.0-20-amd64 x86_64
• Browser: Firefox 125.0.1

Additional Information

No response

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[Xeno852]

Hey! This behavior is partially intended. Surrounding words with "_" will turn them into italics which will in turn remove the surrounding underscores.

[LukasMasuch]

@kilpert Thanks for reporting this issue. I reproduced this here. It's expected that this happens since all these commands render the text as markdown.st.text is rendering it as text without using markdown rendering. Changing this to feature request since it would make sense to allow an option to somehow deactivate markdown rendering, maybe supporting something like in Github Markdown: https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#ignoring-markdown-formatting

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[kilpert]

You are completely right. I forgot about the markdown. Never really use italic. This is a better way to output error messages:

st.error(f"`{error.message}`", icon="⚠️")

[kilpert]

Since this is not a bug, we should close this.

[Xeno852]

If you would like to reopen this / make a new issue to allow an option to deactivate markdown rendering I could try to work on this feature. Would I be able to get assigned this @LukasMasuch ?